Tyre pressures which are too high or too
●
low reduce the useful life of the tyre, affect-
ing vehicle performance.
If a tyre has not been punctured and it
●
does not have to be changed immediately,
drive to the nearest specialised workshop
at a moderate speed and have the tyre
checked and inflated to the correct pres-
sure.
WARNING
Observe the safety warnings
trol and warning lamps on page
Note
If excessively low tyre pressure is detec-
●
ted with the ignition on, an audible warning
will sound. In the event that there is a fault
in the system, an audible warning will
sound.
Driving on dirt tracks for a long period of
●
time or driving in a sporty style can tempo-
rarily deactivate the TPMS. The control
lamp shows a fault, but disappears when
road conditions or the driving style change.
364
Tyre monitoring indicator
›››
in Con-
Instrument panel: warning of loss of
Fig. 310
124.
tyre pressure.
The tyre monitor indicator compares wheel
revolutions and, with this information, the
tread of each wheel using the ABS sensors. If
the rolling circumference of one or more
wheels has changed, the tyre monitoring indi-
cator will indicate this on the instrument pan-
el through a warning lamp and a warning to
›››
the driver
tyre is affected, its position within the vehicle
will be indicated.
Loss of pressure: Check left
tyre pressure!
Wheel tread change
The wheel tread changes when:
Tyre pressure is manually changed
●
Tyre pressure is insufficient
●
Practical tips
Fig.
310. When only one specific
Tyre structure is damaged
●
The vehicle is unbalanced because of a
●
load
The wheels on an axle are subject to a
●
heavier load (e.g. with a heavy load).
The vehicle is fitted with snow chains
●
The temporary spare wheel is fitted
●
The wheel on one axle is changed
●
There may be a delay in the reaction of the
tyre
monitoring indicator or it may not indi-
cate anything under certain circumstances
(e.g. sporty driving, snow-covered or un-
paved roads, or when driving with snow
chains).
Calibrating the tyre monitoring in-
dicator
After changing the tyre pressure or replacing
one or more wheels, the tyre monitoring indi-
cator must be recalibrated. Do the same, for
example, when the front and rear wheels are
swapped.
Switch the ignition on.
●